固定器

Signals from the rat's brain are relayed to a radio transmitter pack strapped to the animal's back.

来自老鼠脑部的信号，会传送到固定在老鼠背上的无线电发射器。

Luneberg lens is a spherical lens which its permittivity varies with normalized radial coordinates. It is fabricated by using different homogeneous dielectric centrically layered media. The lens can focus a parallel beam of rays from any direction exactly at a point on the surface. If it is made by adding a reflecting surface "metallic cap", it is called Luneberg lens reflector. It can reflect incident wave into plane wave in incoming direction. It is usually applied in antenna, radar reflector,satellite-based, and mobile-communucation.

龙伯球透镜为一种介电系数与半径成一固定比例的球形透镜，大部分是由数层不同介电系数介电质组合而成，而其主要特性能够把入射波聚焦到球表面一点，假使在透镜表面处镀上一圆锥角金属层即为龙伯球透镜反射器，能把入射波依平面波的型态反射回原入射端，通常用於天线、雷达、卫星通讯、军事等方面。

Whereas solenoid valves have a fixed displacement, that of a piezo actuator can be varied.

鉴于螺线阀的转位是固定的，而压电致动器的转位可以变换。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

Experiment 4: Air of different volumes and frequencies are pumped into flow plethysmograph.

实验3：用呼吸机和微量加样器制造不同类型的流量，再利用二者以固定频率相同容量往体积描记箱内通气，验证不同流量产生的压力变化是否不同。

The POP 2 flight test, conducted at Eglin Air Force Base, FL, featured a lock-on-after-launch engagement of a stationary target board at 1.6 miles (2.5 km). The team used a ground-based laser designator to illuminate the target.

这次测试是在佛罗里达州格林空军基地进行的，目标是2.5km外的固定目标，发射后即锁定，实验小组人员利用一个低级激光制导器照亮目标。

Modern tractors use a power take-off shaft to provide rotary power to machinery that may be stationary or pulled.

现代拖拉机使用取力器轴（PTO将旋转动力传递到固定或拖曳在拖拉机上的挂件上。

The transmitter stays put, with its radio beam pointing in the direction we wish to explore, and the sail travels along the beam, picking up momentum from the radio saves.

发射器固定不动，它的无线电波指向我们希望深测的方向；探测器沿着电波的方向运动，从无线电波获取动力。

5 Each anchor chain marking and chain stern fasten status shall be examined before installation. The inspection of cable releaser shall be carried out when the anchor is releasing.

每个锚链的标记和链尾固定情况应在安装前进行检查，弃链器设备的检验应在锚脱勾时进行。

In order to choose suitable voltage space vector and achieve current-follow-control,it samples stator current with constant frequency.According to the motor-model,optimize-controlled coltage vector is computed at the next sample moment to control actual next stator current so as to follow next reference.

为了选择合适的电压空间矢量，实现电流跟踪控制，以固定频率采样定子电流，按电机模型计算出下一采样时刻逆变器的最优控制电压矢量，从而控制下一时刻实际定子电流去追踪下一时刻参考电流。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。